I've got a big bag (really big) of open cell foam. Most of the pieces are medium density rounds, about 4-5" thick and 8" diameter-I have about 15 of those, the rest is lower density strips that range from 1-2" thick and 2-2.5" wide, lengths vary but are around 8"-12". If anyone would like any foam, let me know and I'll bring it to the Seattle 3 Day this coming weekend.